Combined saw setting and gumming tool



(No Model.)

1). MQDAONOUGH.

I V COMBINED SAW SETTING AND GUMMING TOOL. No. 336,933. Patented Mar. 2,1886.

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UNITED STATES DANIEL MCDONOUGH, OF EAGLE RIVER, WISCONSIN.

COMBINED SAW SETTI NG AND GUMMING TOOL.

SPECIFICATION forming part of Letters Patent No. 336,933, dated March 2,1886.

Application filed August 24, 1885. Serial No. 175,193. (No model.)

To all whom it may concern.-

Be it known that I, DANIEL McDoNoUGH, of Eagle River, in the county ofLincoln and State of \Visconsin, have invented a new and useful CombinedSaw Setting and Gumming Tool; and I do hereby declare the following tobe a full, clear, and exact description of said invention, referencebeing had to the accompanying drawings, and to the letters or figures ofreference marked thereon, which form a part of this specification.

Figure 1 isaside view of my combined tool. Fig. 2 is a view of the toolas seen from above when in the position shown in Fig. 1. Fig. 3 is across-section of the tool on line xwof Fig. 2. Fig. 4 is the saw-toothgage removedfrom the tool.

The same letters refer to like parts in all the views.

In the drawings, A is a solid bar, and is the main or,principal piece ofthe tool, to which all the other parts are attached or on which they aresupported. To one edge of this bar, near one end but ata distance fromeach other, are

two stirrups, B B, rigid to the bar A and extending beyond its edge. Abar, 0, slides within these stirrups and is provided on its inner orupper side with a downwardly-beveled recess, D, which recess is intendedand adapted for a seatinto and against the bottom of which the teeth ofthe saw are severally forced by the punch for setting the teeth.

At the end of the barA, and rigidly affixed thereto and projectingtherefrom, are two lugs, E E, each provided with a vertical apertureintended and adapted for hearings in which the punch F is supported andhas a vertical movement. The lower end of the punch F is beveled off atthe same angle as the bottom of the recess D, into which recess saidpunch is adapted, when struck on the top, to force the saw-tooth placedover the recess D. Around the punch F is a coiled wire spring, G, thelower end of which rests upon the lug E and the upper end rests againsta collar rigid on the punch F, which spring is adapted to lift the punchaway from the bar 0, over which, when extended, as shown in Fig. 1, thepunch is located.

Near the other extremity of the bar A a jaw, H, is pivoted thereto bythe cross-bars I I.

The inner end, H, of this jaw forms, with the side of the bar A oppositethereto, a clamp adapted to receive and hold the saw for gumming. Thejaws of this clamp are forced and held together by means of a setscrew,J, interposed between the outer rear ends of the jaw H and the bar A,which set-screw turns upon a screw-thread in the bar A, its other endbeing against the jaw H, said set-screw being provided witha milled ornut-faced rigid collar for convenience in turning it up or down. Thereis an aperture through the jaw H, and concurrent and homogeneoustherewith an aperture through the bar A,into which the gumming-punch Kis fitted and in which it has free movement vertically in position shownin Fig. 2.

The bar A has a T-shaped recess in its top, and continuous therewith arecess in the side, which said top and side recess is adapted to receiveand hold the saw-tooth gage L. This saw-tooth gage is adapted for gagingthe drag or clearing teeth of the saw, which are a little shorter thanthe cutting-teeth. This gage consists of a pieceof sheet metal bent atright angles, forming a top and side, having a slot, M, cut through thetop and down so far on the side below the inside of the top as theclearing-teeth should be shorter than the cuttingteeth of the saw, whichslot is sufficiently large to permit the saw-file to run freely therein.The recess in the bar Ais of a proper size and depth for receiving saidgage L therein, wherein it is retained by the large-headed stud N, rigidin bar A, the shank of which is adapted to be received within the socketO in said gage, while the edge of' the adjacent parts of the gage passbeneath the head of the stud.

The various uses of this tool are in part as follows: The tool being inthe position shown in Fig. 2, a saw is inserted in the clamp H A, sothat the part to be gummed will be directly across the aperture in whichthe punch K moves, and is made fast by means of the setscrew J, when thepunch K is struck on the top with sufficient force to punch outthe part,as desired, which process is repeated as manytimes as is necessary togum the entire saw. To set the saw, the tool is placed in the positionshown in Fig. 1 and the bar G is moved out and adjusted so that therecess D is di- -reetly beneath the punch F, Fig. 1, and a saw lying onits side upon the barOis so far thrust under the punch that the point ofone of the cutting-teeth is over the deepest part of the recess D. Thepunch F is then struck with suffieient force to set the tooth firmlydown upon and against the bottom of the recess D, and the saw-gage L isremoved from the bar A and used as hereinbefore indicated.

WVhat I claim as new, and desire to secure by Letters Patent, is

The combined tool consisting of the bar A, provided with a recess forthe reception of gage L, the sliding bar G,pprovided with bev- DANIELMoDONOUGl-I.

Vitnesses:

B. R. LEWIS, DANIEL GRAHAM.

